Eaele h



(Np Model.)

E. E. SMITH. A MACHINE FOR SEWING HEA VY MATERIALS. 'No. 260,130.

Patented June 27, 18 82..

fiweularw V N. PETERS. Pholulifihugmphel. willhinghjm D. o

articles sewed, such as sails, tents, 850.

UNITED STATES PATENT OFFICE.

EARLE E. SMITH, OF NEW YORK, N. Y.

MACHINE FOR SEWING HEAVY MATERIALS.

SPECIFICATION forming part of Letters Patent No. 260,130, dated June 27, 1882,

Application filed July 6, 1881.

To all whom it may concern Be it known that I, EARLE E. SMITH, of thecity of New York, in the State of New York, have invented certain new and useful Improvements in Machinery for Sewin g Heavy Materials, whereof the following is a specification.

The object of this invention is to sew seams in heavy materials with oblique stitching 1ying across the edge of the goods and without impartingalateral movement to the goods or To form such oblique stitching by machinery adapted to large and bulky articles, the goods sewed are supported and held stationary in a horizontal position by suitable work-supports,

while the needle or needles have a lateral movement in respect to the feed, so as to carry the thread of each stitch over the selvage or edge of the goods in the line of the seam,which lateral motion may be given with or without so moving the entire machine. At the sametime the edges of the goods to be united are guided and controlled by seam-guides held fixedly as to said lateral movement and to the feed and presenting the goods to the needle or needles as the sewing progresses.

In the drawings,Figure 1 is a side elevation of a traveling sewing-machine, showing a railway frame in section and part of work-supports. Fig. 2 is a top view of the seam-guide and means for supporting the same. Fig. 3 is an'end elevation, partly in section, of Fig. 1.-

For imparting the transverse motion to such sewin g device various means may be used.

In the drawings, I indicates a cam-wheel driven by a bevel-wheel, It, on the vertical shaft J at half the speed of the main shaft H. Such cam imparts a vibratory motion to a le- (No model.)

ver, L, and thence through suitable-conned tions to the needleand sewing mechanism,

giving one lateral movement to and fro with every two stitches or every two revolutions 5 It therein, the lateral movement is increased or diminished, thus increasing or diminishingthe spread of the oblique stitching.

By using what is known as a twin machine two lines of oblique stitching may be done at one operation.

The articles or goods in process of being sewed are supported and secured in a stationary condition while breadth after breadth is added and sewed in'a similar manner to that set forth in my patent of November 1, 1881, No. 248,892, of which the present is a modification and improvement, and I refer to that patent for a description of such method and of the work-supports, one of which is partially indicated in dotted lines in Fig. l and the other is seen at A D is a seam-guide for the edges of the goods being sewed together.

E is a device, termed a bridge, made fast to the support B, and spanning the bed-plate A. This bridge receives the seam-guide and holds the same stationary with respect to the vibrating needles in the same manner, substantially, as if attached to a sewing-machine bed-plate.

. The sewing-machine and carriage are advanced intermittently by any suitable mech anism, preferably by that seen in my patent of Novemberl, 1881, before mentioned.

The foregoing improvements may be variously modified within the invention. For example, other cam-motions may be used to vi- V" brate the needle or sewing mechanism. Rollers may take the place of the links a. Other forms of seam-guide may be adopted, and their means of support may be varied.

I claim as my invention-- IOC) 1. The combination of the sewing-machine with a support, B, by means of links a, substantially as specified.

2. The combination, with a sewing mechanism adapted to reciprocate laterally and a support, B, of a bridge, E, to sustain the seamguides, substantially as and for the purpose specified.

3. The combination, with the sewing mechanism and a support, B, of a cam, I, and a le- \GI, L, for imparting a lateral reciprocating movement, as set forth, whereby to carry the sewing devices from side to side as the sewin g progresses, for the purpose specified. 

